effort.py :  » Project-Management » Task-Coach » TaskCoach-1.0.3 » taskcoachlib » gui » viewer » Python Open Source

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Python Open Source » Project Management » Task Coach 
Task Coach » TaskCoach 1.0.3 » taskcoachlib » gui » viewer » effort.py
# -*- coding: utf-8 -*-

'''
Task Coach - Your friendly task manager
Copyright (C) 2004-2010 Frank Niessink <frank@niessink.com>
Copyright (C) 2007-2008 Jerome Laheurte <fraca7@free.fr>
Copyright (C) 2008 Rob McMullen <rob.mcmullen@gmail.com>
Copyright (C) 2008 Thomas Sonne Olesen <tpo@sonnet.dk>

Task Coach is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Task Coach is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
'''

import wx
from taskcoachlib import patterns,command,widgets,domain
from taskcoachlib.domain import effort,date
from taskcoachlib.domain.base import filter# pylint: disable-msg=W0622
fromtaskcoachlib.i18n_
from taskcoachlib.gui import uicommand,menu,render,dialog
import base, mixin


class EffortViewer(base.ListViewer, mixin.SortableViewerForEffortMixin, 
                   mixin.SearchableViewerMixin, base.UpdatePerSecondViewer, 
                   base.ViewerWithColumns): 
    defaultTitle = _('Effort')
    defaultBitmap = 'clock_icon'
    SorterClass = effort.EffortSorter
    
    def __init__(self, *args, **kwargs):
        self.aggregation = 'details'
        self.tasksToShowEffortFor = kwargs.pop('tasksToShowEffortFor', [])
        kwargs.setdefault('settingsSection', 'effortviewer')
        self.__hiddenTotalColumns = []
        self.__hiddenWeekdayColumns = []
        self.__columnUICommands = None
        self.__domainObjectsToView = None
        self.__observersToDetach = []
        super(EffortViewer, self).__init__(*args, **kwargs)
        self.aggregation = self.settings.get(self.settingsSection(), 'aggregation')
        self.aggregationUICommand.setChoice(self.aggregation)
        self.createColumnUICommands()
        for eventType in (effort.Effort.foregroundColorChangedEventType(),  
                          effort.Effort.backgroundColorChangedEventType(),
                          effort.Effort.fontChangedEventType()):
            patterns.Publisher().registerObserver(self.onAttributeChanged,
                                                  eventType=eventType)
        
    def domainObjectsToView(self):
        if self.__domainObjectsToView is None:
            if self.displayingNewTasks():
                tasks = self.tasksToShowEffortFor
            else:
                tasks = selectedItemsFilter = domain.base.SelectedItemsFilter(self.taskFile.tasks(), 
                                                                              selectedItems=self.tasksToShowEffortFor)
                self.__observersToDetach.append(selectedItemsFilter)
            searchFilter = domain.base.SearchFilter(tasks)
            self.__domainObjectsToView = searchFilter
            self.__observersToDetach.append(searchFilter)
        return self.__domainObjectsToView
    
    def displayingNewTasks(self):
        return any([task not in self.taskFile.tasks() for task in self.tasksToShowEffortFor])
    
    def detach(self):
        super(EffortViewer, self).detach()
        for observer in self.__observersToDetach:
            patterns.Publisher().removeInstance(observer)    
            
    def isSortable(self):
        return False # Effort viewers are currently not sortable
    
    def isShowingEffort(self):
        return True
    
    def curselectionIsInstanceOf(self, class_):
        return class_ == effort.Effort
    
    def trackStartEventType(self):
        return effort.Effort.trackStartEventType()
    
    def trackStopEventType(self):
        return effort.Effort.trackStopEventType()
        
    def showEffortAggregation(self, aggregation):
        ''' Change the aggregation mode. Can be one of 'details', 'day', 'week'
            and 'month'. '''
        assert aggregation in ('details', 'day', 'week', 'month')
        self.aggregation = aggregation
        self.settings.set(self.settingsSection(), 'aggregation', aggregation)
        self.setPresentation(self.createSorter(self.createAggregator(\
                             self.domainObjectsToView(), aggregation)))
        self.registerPresentationObservers()
        # Invalidate the UICommands used for the column popup menu:
        self.__columnUICommands = None
        # If the widget is auto-resizing columns, turn it off temporarily to 
        # make removing/adding columns faster
        autoResizing = self.widget.IsAutoResizing()
        if autoResizing:
            self.widget.ToggleAutoResizing(False)
        # Refresh first so that the list control doesn't think there are more
        # efforts than there really are when switching from aggregate mode to
        # detail mode.
        self.refresh()
        self._showTotalColumns(show=aggregation!='details')
        self._showWeekdayColumns(show=aggregation=='week')
        if autoResizing:
            self.widget.ToggleAutoResizing(True)

    def createFilter(self, taskList):
        ''' Return a class that filters the original list. In this case we
            create an effort aggregator that aggregates the effort records in
            the taskList, either individually (i.e. no aggregation), per day,
            per week, or per month. '''
        aggregation = self.settings.get(self.settingsSection(), 'aggregation')
        return self.createAggregator(filter.DeletedFilter(taskList), aggregation)
    
    def createAggregator(self, taskList, aggregation):
        ''' Return an instance of a class that aggregates the effort records 
            in the taskList, either:
            - individually (aggregation == 'details'), 
            - per day (aggregation == 'day'), 
            - per week ('week'), or 
            - per month ('month'). '''
        if aggregation == 'details':
            result = effort.EffortList(taskList)
        else:
            result = effort.EffortAggregator(taskList, aggregation=aggregation)
        self.__observersToDetach.append(result)
        return result
            
    def createWidget(self):
        self._columns = self._createColumns()
        itemPopupMenu = menu.EffortPopupMenu(self.parent, self.taskFile.tasks(),
            self.settings, self.presentation(), self)
        columnPopupMenu = menu.EffortViewerColumnPopupMenu(self)
        self._popupMenus.extend([itemPopupMenu, columnPopupMenu])
        widget = widgets.ListCtrl(self, self.columns(), self.onSelect,
            uicommand.EffortEdit(viewer=self, effortList=self.presentation()),
            itemPopupMenu, columnPopupMenu,
            resizeableColumn=1, **self.widgetCreationKeywordArguments())
        widget.SetColumnWidth(0, 150)
        return widget
    
    def _createColumns(self):
        # pylint: disable-msg=W0142
        kwargs = dict(renderDescriptionCallback=lambda effort: effort.description(),
                      resizeCallback=self.onResizeColumn)
        return [widgets.Column(name, columnHeader, eventType, 
                renderCallback=renderCallback,
                width=self.getColumnWidth(name), **kwargs) \
            for name, columnHeader, eventType, renderCallback in \
            ('period', _('Period'), 'effort.duration', self.renderPeriod),
            ('task', _('Task'), effort.Effort.taskChangedEventType(), lambda effort: effort.task().subject(recursive=True)),
            ('description', _('Description'), effort.Effort.descriptionChangedEventType(), lambda effort: effort.description())] + \
            [widgets.Column('categories', _('Categories'),
             width=self.getColumnWidth('categories'),
             renderCallback=self.renderCategory, **kwargs)] + \
            [widgets.Column('totalCategories', _('Overall categories'),
             width=self.getColumnWidth('totalCategories'),
             renderCallback=lambda effort: self.renderCategory(effort, recursive=True),
             **kwargs)] + \
            [widgets.Column(name, columnHeader, eventType, 
             width=self.getColumnWidth(name),
             renderCallback=renderCallback, alignment=wx.LIST_FORMAT_RIGHT,
             **kwargs) \
            for name, columnHeader, eventType, renderCallback in \
            ('timeSpent', _('Time spent'), 'effort.duration', 
                lambda effort: render.timeSpent(effort.duration())),
            ('revenue', _('Revenue'), 'effort.revenue', 
                lambda effort: render.monetaryAmount(effort.revenue())),
            ('totalTimeSpent', _('Total time spent'), 'effort.totalDuration',  
                 lambda effort: render.timeSpent(effort.duration(recursive=True))),
            ('totalRevenue', _('Total revenue'), 'effort.totalRevenue',
                 lambda effort: render.monetaryAmount(effort.revenue(recursive=True)))] + \
             [widgets.Column(name, columnHeader, eventType, 
              renderCallback=renderCallback, alignment=wx.LIST_FORMAT_RIGHT,
              width=self.getColumnWidth(name), **kwargs) \
             for name, columnHeader, eventType, renderCallback in \
                ('monday', _('Monday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 0)),                             
                ('tuesday', _('Tuesday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 1)),
                ('wednesday', _('Wednesday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 2)),
                ('thursday', _('Thursday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 3)),
                ('friday', _('Friday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 4)),
                ('saturday', _('Saturday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 5)),
                ('sunday', _('Sunday'), 'effort.duration',  
                 lambda effort: self.renderTimeSpentOnDay(effort, 6))      
             ]

    def _showTotalColumns(self, show=True):
        if show:
            columnsToShow = self.__hiddenTotalColumns[:]
            self.__hiddenTotalColumns = []
        else:
            self.__hiddenTotalColumns = columnsToShow = \
                [column for column in self.visibleColumns() \
                 if column.name().startswith('total')]
        for column in columnsToShow:
            self.showColumn(column, show, refresh=False)

    def _showWeekdayColumns(self, show=True):
        if show:
            columnsToShow = self.__hiddenWeekdayColumns[:]
            self.__hiddenWeekdayColumns = []
        else:
            self.__hiddenWeekdayColumns = columnsToShow = \
                [column for column in self.visibleColumns() \
                 if column.name() in ['monday', 'tuesday', 'wednesday', 
                 'thursday', 'friday', 'saturday', 'sunday']]
        for column in columnsToShow:
            self.showColumn(column, show, refresh=False)

    def getColumnUICommands(self):
        if not self.__columnUICommands:
            self.createColumnUICommands()
        return self.__columnUICommands

    def createColumnUICommands(self):
        self.__columnUICommands = \
            [uicommand.ToggleAutoColumnResizing(viewer=self,
                                                settings=self.settings),
             None,
             uicommand.ViewColumn(menuText=_('&Description'),
                                  helpText=_('Show/hide description column'),
                                  setting='description', viewer=self),
             uicommand.ViewColumn(menuText=_('&Categories'),
                                  helpText=_('Show/hide categories column'),
                                  setting='categories', viewer=self),
             uicommand.ViewColumn(menuText=_('Overall categories'),
                                  helpText=_('Show/hide categories column'),
                                  setting='totalCategories', viewer=self),
             uicommand.ViewColumn(menuText=_('&Time spent'),
                                  helpText=_('Show/hide time spent column'),
                                  setting='timeSpent', viewer=self),
             uicommand.ViewColumn(menuText=_('&Revenue'),
                                  helpText=_('Show/hide revenue column'),
                                  setting='revenue', viewer=self),]
        if self.aggregation != 'details':
            self.__columnUICommands.insert(-1, 
                uicommand.ViewColumn(menuText=_('&Total time spent'),
                    helpText=_('Show/hide total time spent column'),
                    setting='totalTimeSpent',
                    viewer=self))
            self.__columnUICommands.append(\
                uicommand.ViewColumn(menuText=_('Total &revenue'),
                    helpText=_('Show/hide total revenue column'),
                    setting='totalRevenue',
                    viewer=self))
        if self.aggregation == 'week':
            self.__columnUICommands.append(\
                uicommand.ViewColumns(menuText=_('Effort per weekday'),
                    helpText=_('Show/hide time spent per weekday columns'),
                    setting=['monday', 'tuesday', 'wednesday', 'thursday', 
                             'friday', 'saturday', 'sunday'],
                    viewer=self))

    def createToolBarUICommands(self):
        commands = super(EffortViewer, self).createToolBarUICommands()
        # This is an instance variable for use in unit tests
        # pylint: disable-msg=W0201
        self.deleteUICommand = uicommand.EffortDelete(viewer=self,
                                                      effortList=self.presentation())
        # This is an instance variable so that the choice can be changed programmatically
        self.aggregationUICommand = \
            uicommand.EffortViewerAggregationChoice(viewer=self)
        for uiCommand in [None, 
                          uicommand.EffortNew(viewer=self,
                                              effortList=self.presentation(),
                                              taskList=self.taskFile.tasks(),
                                              settings=self.settings),
                          uicommand.EffortEdit(viewer=self,
                                               effortList=self.presentation()),
                          self.deleteUICommand, 
                          None,
                          self.aggregationUICommand]:
            commands.insert(-2, uiCommand)
        return commands

    def getItemImage(self, index, which, column=0): # pylint: disable-msg=W0613
        return -1
    
    def curselection(self):
        selection = super(EffortViewer, self).curselection()
        if self.aggregation != 'details':
            selection = [anEffort for compositeEffort in selection\
                                for anEffort in compositeEffort]
        return selection
    
    def getIndexOfItem(self, item):
        if self.aggregation == 'details':
            return super(EffortViewer, self).getIndexOfItem(item)
        for index, compositeEffort in enumerate(self.presentation()):
            if item == compositeEffort or item in compositeEffort:
                return index
        return -1

    def isselected(self, item):
        """When this viewer is in aggregation mode, L{curselection}
        returns the actual underlying L{Effort} objects instead of
        aggregates. This is a problem e.g. when exporting only a
        selection, since items we're iterating over (aggregates) are
        never in curselection(). This method is used instead. It just
        ignores the overriden version of curselection."""

        return item in super(EffortViewer, self).curselection()

    def statusMessages(self):
        status1 = _('Effort: %d selected, %d visible, %d total')%\
            (len(self.curselection()), len(self.presentation()), 
             self.presentation().originalLength())         
        status2 = _('Status: %d tracking')% self.presentation().nrBeingTracked()
        return status1, status2

    def renderPeriod(self, anEffort):
        if self._hasRepeatedPeriod(anEffort):
            return ''
        start = anEffort.getStart()
        if self.aggregation == 'details':
            return render.dateTimePeriod(start, anEffort.getStop())
        elif self.aggregation == 'day':
            return render.date(start.date())
        elif self.aggregation == 'week':
            return render.weekNumber(start)
        elif self.aggregation == 'month':
            return render.month(start)
            
    def _hasRepeatedPeriod(self, anEffort):
        ''' Return whether the effort has the same period as the previous 
            effort record. '''
        index = self.presentation().index(anEffort)
        previousEffort = index > 0 and self.presentation()[index-1] or None
        return previousEffort and anEffort.getStart() == previousEffort.getStart()

    def renderTimeSpentOnDay(self, anEffort, dayOffset):
        if self.aggregation == 'week':
            duration = anEffort.durationDay(dayOffset)
        else:
            duration = date.TimeDelta()
        return render.timeSpent(duration)
    
    def newItemDialog(self, *args, **kwargs):
        selectedTasks = kwargs.get('selectedTasks', [])
        bitmap = kwargs.get('bitmap', 'new')
        if not selectedTasks:
            subjectDecoratedTaskList = [(task.subject(recursive=True), task) \
                                        for task in self.tasksToShowEffortFor]
            subjectDecoratedTaskList.sort() # Sort by subject
            selectedTasks = [subjectDecoratedTaskList[0][1]]
        return super(EffortViewer, self).newItemDialog(selectedTasks, bitmap=bitmap)
        
    def editorClass(self):
        return dialog.editor.EffortEditor
    
    def newItemCommandClass(self):
        return command.NewEffortCommand
    
    def editItemCommandClass(self):
        return command.EditEffortCommand

    def newSubItemCommandClass(self):
        pass # efforts are not composite.

    def deleteItemCommandClass(self):
        return command.DeleteEffortCommand
    
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